Utility of Time is a tool developed by cooliscool that allows users to view and edit Zelda: Ocarina of Time and Majora's Mask object (.zobj) files, map files (.zmap), visually place and change actors (NPCs in most cases, Link as well) in the loaded room, save them, and inject back into the respective ROM, and much more.

After proving its worth, ZAVAP was given the name "Utility of Time" (abbr: UoT) due to its swiss-army knife functionality. Written in VB.NET, it emulates ~90% of the F3DEX2 microcode, and makes use OpenGL 1.1-1.4 technology.

CloudModding OoT Wiki is a derivation and expansion of the data available at wiki.spinout182.com